Is your best friend a government-trained supersoldier? How about your mom, or your algebra teacher? You'll never know until they're activated. Small-town stoner Mike Howell (Jesse Eisenberg) didn't know he was a sleeper agent until he was activated -- and that was a big mistake. 

American Ultra gets activated in theaters August 21.

Don't miss the exclusive action-packed trailer debut of American Ultra.

And check out the debut of the explosive new poster...